Donati I, Gamini A, Vetere A, Campa C, Paoletti S. Synthesis, characterization, and preliminary biological study of glycoconjugates of poly(styrene-co-maleic acid). Biomacromolecules. 2002;3(4):805-12.
Walford GA, Davis J, Warner S, et al. Branched chain and aromatic amino acids change acutely following two medical therapies for type 2 diabetes mellitus. Metabolism. 2013;62(12):1772-8. doi:10.1016/j.metabol.2013.07.003.